We all know, or should know, that Mexico has its own BORDER WALL on the south. More than that, if you are caught illegal in Mexico you can forget about food stamps, welfare, and medical care, because you will either be on your way to America with lots of bribes or in prison. Mexican prison will not go well for anyone caught in that spider web.
But Mexicans are not the most racist people. The most racist people I know are American Black people. These guys are 360 degree racists. They hate Asians, they hate Mexicans/Latinos, they hate Whites, they hate everybody even other Black people. Their unbridled racism is unlimited.